title: Giant fluctuations and gate control of the g-factor in InAs nanowire quantum dots.
abstract: We study the g-factor of discrete electron states in InAs nanowire based quantum dots. The g values are determined from the magnetic field splitting of the zero bias anomaly due to the spin 1/2 Kondo effect. Unlike to previous studies based on 2DEG quantum dots, the g-factors of neighboring electron states show a surprisingly large fluctuation: g can scatter between 2 and 18. Furthermore electric gate tunability of the g-factor is demonstrated.
authors.affiliation: Department of Physics, University of Basel, Klingelbergstr. 82, CH-4056 Basel, Switzerland. szabolcs.csonka@unibas.ch
authors.forename: S
authors.initials: S
authors.lastname: Csonka
authors.forename: L
authors.initials: L
authors.lastname: Hofstetter
authors.forename: F
authors.initials: F
authors.lastname: Freitag
authors.forename: S
authors.initials: S
authors.lastname: Oberholzer
authors.forename: C
authors.initials: C
authors.lastname: Schönenberger
authors.forename: T S
authors.initials: TS
authors.lastname: Jespersen
authors.forename: M
authors.initials: M
authors.lastname: Aagesen
authors.forename: J
authors.initials: J
authors.lastname: Nygård